What is garnet?

With reference to sandblasting, what is garnet? - Mike

"Michael Horowitz" wrote in message
...
With reference to sandblasting, what is garnet? - Mike

It is a mineral that is very hard, and is one of the more common choices of
grit found on sandpaper.

I'm no expert on sandblasting, but I believe it is only used when the job
calls for very aggressive removal, such as very rusty or heavily painted
THICK steel.

Typically NOT aircraft. :-)
--
Jim in NC

we;;, there goes the planned visit to TSC
I'm wondering if I' m just not using this handheld blaster correctly;
sand works but oh, so slow - Mike


On Sat, 1 Nov 2008 06:01:12 -0500, "Morgans"
wrote:


"Michael Horowitz" wrote in message
.. .
With reference to sandblasting, what is garnet? - Mike

It is a mineral that is very hard, and is one of the more common choices of
grit found on sandpaper.

I'm no expert on sandblasting, but I believe it is only used when the job
calls for very aggressive removal, such as very rusty or heavily painted
THICK steel.

Typically NOT aircraft. :-)

"Michael Horowitz" wrote in message
...
we;;, there goes the planned visit to TSC
I'm wondering if I' m just not using this handheld blaster correctly;
sand works but oh, so slow - Mike

You using a unit run off of a 3 HP or smaller air compressor? That is just
a toy, meant for small parts.

Like another poster said, the garnet leaves stress in parts, especially
aluminum, so I have heard.
--
Jim in NC

Hello Jim - Craftsman 5 HP, 20 gal tank capable of 150 psi but I've
only been able to get it to 125.
Do you think I'm fooling myself? I know SB takes a lot of air - Mike



On Sat, 1 Nov 2008 07:37:10 -0500, "Morgans"
wrote:


"Michael Horowitz" wrote in message
.. .
we;;, there goes the planned visit to TSC
I'm wondering if I' m just not using this handheld blaster correctly;
sand works but oh, so slow - Mike

You using a unit run off of a 3 HP or smaller air compressor? That is just
a toy, meant for small parts.

Like another poster said, the garnet leaves stress in parts, especially
aluminum, so I have heard.

"Michael Horowitz" wrote in message
news
Hello Jim - Craftsman 5 HP, 20 gal tank capable of 150 psi but I've
only been able to get it to 125.
Do you think I'm fooling myself? I know SB takes a lot of air - Mike

Real horsepower or Sears horsepower? If it runs on 110 volts, you aren't
getting 5 HP.

The maximum pressure is irrelevent.

You can do some sandblasting on a 110 volt compressor, but it's pretty much
limited to small parts and you have to take a break every now and again to
let the compressor catch up.


What are you trying to clean up?

--
Geoff
The Sea Hawk at Wow Way d0t Com
remove spaces and make the obvious substitutions to reply by mail
When immigration is outlawed, only outlaws will immigrate.

"Michael Horowitz" wrote in message
news
Hello Jim - Craftsman 5 HP, 20 gal tank capable of 150 psi but I've
only been able to get it to 125.
Do you think I'm fooling myself? I know SB takes a lot of air - Mike

Yep, 'fraid so.

Craftsman ALWAYS over rates their power tools. It probably uses 13 - 15 amps
at 110 V. That's 2 HP to most others.

Any blasting with that is low volume and low pressure, with lots of waiting.
--
Jim in NC

This isn't electric; Honda engine ; does that make a diff? = Mike


On Sat, 1 Nov 2008 15:35:33 -0400, "Capt. Geoffrey Thorpe" The Sea
Hawk @See My Sig.com wrote:

"Michael Horowitz" wrote in message
news
Hello Jim - Craftsman 5 HP, 20 gal tank capable of 150 psi but I've
only been able to get it to 125.
Do you think I'm fooling myself? I know SB takes a lot of air - Mike

Real horsepower or Sears horsepower? If it runs on 110 volts, you aren't
getting 5 HP.

The maximum pressure is irrelevent.

You can do some sandblasting on a 110 volt compressor, but it's pretty much
limited to small parts and you have to take a break every now and again to
let the compressor catch up.


What are you trying to clean up?

This isn't electric; Honda engine ; does that make a diff? = Mike


On Sat, 1 Nov 2008 16:38:17 -0500, "Morgans"
wrote:


"Michael Horowitz" wrote in message
news
Hello Jim - Craftsman 5 HP, 20 gal tank capable of 150 psi but I've
only been able to get it to 125.
Do you think I'm fooling myself? I know SB takes a lot of air - Mike

Yep, 'fraid so.

Craftsman ALWAYS over rates their power tools. It probably uses 13 - 15 amps
at 110 V. That's 2 HP to most others.

Any blasting with that is low volume and low pressure, with lots of waiting.

"Michael Horowitz" wrote in message
...

This isn't electric; Honda engine ; does that make a diff? = Mike

Probably a little, but it is still in the "small compressor" class.

Real sandblasting systems are usually run by 4 cylinder or larger engines,
and move many times more CFM. They also shoot a lot more blasting media per
minute, most likely.

If you are really wanting to do a large job, rent one, or hire a
sandblasting outfit. You will be ahead on aggravation and time.

If you are only going to do small parts and such, take your time, and enjoy!
g
--
Jim in NC